1. What do UV rays do to the skin? By: Meredith Walker

2. Pros  Vitamin D  Strengthening bones and immune system  Disinfection/ Sterilization  Kills bacteria  Mood  Stimulates the pineal gland to produce tryptamines  Skin Conditions  Helps to heal some diseases we get on our skin  Psoriasis http://juicebaraustin.com/product/e nergizer/

3. Cons  Skin Cancer  Caused by UV rays  Sunburn  Result of damaged skin cells  Immune System  Body cant fight off foreign invaders  Eyes  Photokeratitis  Skin  Destroys the collagen http://www.onislam.net

4. 3 Types of Rays 1.UV- C 2. UV- B Epidermis Melanocytes Cancer Immune System Sand, Water 3. UV-A Aging Dermis Health Cancer http://www.onislam.net

5. Skin Cancer/ Tanning Bed  UV radiation  Melanoma  Damage to DNA  A, C, T, G  Mutations  Causing the sentences to break and or the pairs to stick together  Tanning bed vs. Natural Sunlight  It is all bad, it will all lead to cancer  UVA- tanning beds; UVB- more serious in natural sunlight  International Agency for Research on Cancer  Risk for melanoma increases by 75% if you start by the age of 35  What tanning bed companies lead you to believe (vitamin D, protection) http://genetics.thetech.org

6. Works Cited "Health Effects of UV Radiation." WHO. World Health Organization. Web. 14 Sept. 2014.. Irfan, Hwaa. "The Pros and Cons of Ultraviolet Rays in Human Health." Pros and Cons of Ultraviolet Rays. Hwaa Irfan, 10 May 2014. Web. 14 Sept. 2014.. "Positive and Negative Effects of UV." Science Learning Hub RSS. Science Learning Hub Co., 2007. Web. 14 Sept. 2014.. "UVA vs UVB, Difference Between UVA & UVB | COOLA Organic Suncare." UVA vs UVB, Difference Between UVA & UVB | COOLA Organic Suncare. COOLA, 2014. Web. 14 Sept. 2014.. "What Is Ultraviolet (UV) Radiation?" American Cancer Society. American Cancer Society, 20 Feb. 2014. Web. 14 Sept. 2014.. DeNofrio, Jan, Dr. "Understanding Genetics." Understanding Genetics. The Tech Museum of Innovation, 30 Mar. 2011. Web. 14 Sept. 2014.. Nicholson, Celeste R., MD. "By the Way, Doctor: Is a Tanning Bed Safer than Sunlight?" By the Way, Doctor: Is a Tanning Bed Safer than Sunlight? Harvards Women Health Watch, Sept. 2009. Web. 14 Sept. 2014..